The Grotto's Secret is a historically rich conspiracy thriller set in modern day London with a medieval time lapse twist in Spain.

THE GROTTOS SECRET
If you like thrillers with conspiracy and mystery dating back to medieval times, you can download The Grotto's Secret from Amazon:
http://getBook.at/The-Grottos-Secret

Or if you'd like to see a few sample chapters before you read, try these sample chapters:
https://paulawynne.com/the-grottos-secret-free-chapters